CO-PROCESSING FOR CONTROL OF HYDROPYROLYSIS PROCESSES AND PRODUCTS THEREOF

摘要

Hydropyrolysis processes are described, in which differing types of feedstocks, including at least one biorenewable feedstock, namely a biomass-containing feedstock, may be co-processed to allow enhancements in operating conditions and/or product properties, depending on changing customer requirements and/or overall market demands. According to specific embodiments, an aliphatic hydrocarbon precursor or an aromatic hydrocarbon precursor is co-processed with the biomass-containing feedstock to enhance an operating condition (e.g., a reactor temperature profile) of the hydropyrolysis process and/or a property (e.g., cetane number) of a liquid product (e.g., a diesel boiling range fraction) obtained from a substantially fully deoxygenated hydrocarbon liquid.

主权项

1. A process for producing liquid hydrocarbon products comprising:
a) hydropyrolyzing a biomass-containing feedstock in a hydropyrolysis reactor vessel comprising hydrogen and a deoxygenating catalyst, producing a hydropyrolysis reactor output comprising at least one non-condensable gas, a partially deoxygenated hydropyrolysis product and char particles; b) hydroconverting at least a portion of the partially deoxygenated hydropyrolysis product in a hydroconversion reaction zone comprising at least one hydroconversion reactor vessel containing a hydroconversion catalyst, producing a hydroconversion reactor output; and c) recovering a substantially fully deoxygenated hydrocarbon liquid and a gaseous mixture from the hydroconversion reactor output, wherein (i) an operating condition of the hydropyrolysis reactor, (ii) an operating condition of the hydroconversion reactor, (iii) a property of the substantially fully deoxygenated hydrocarbon liquid, or (iii) any combination of (i), (ii), and/or (iii), is enhanced by virtue of co-processing an aliphatic hydrocarbon precursor or an aromatic hydrocarbon precursor in at least one of the hydropyrolysis reactor vessel and the hydroconversion reactor vessel.